FSX-MS PMDG 747-400X Problems during mid flight

[zap51 3]

The last few times I have attemted a long flight with my pmdg 747-400X, it has done the weirdest things. I have double checked my FMC and pre-flight setup to make sure everything is right. Read the manual and view several video tutorials . I started a flght from EHAM to KDEN. The first several hundred miles everything is fine, then all of the sudden the plane goes into a type of holding pattern. Then it will lose speed and stall out. I have to disendaged the autopilot and reset everything. It keeps flying around in a circle then stalling out. Anyone else experienced this?

Windows 7, 64 bit, INtel Core i7 Processor, ATI Radeon HD 5770 1024 MB, 1TD Hard Drive, 8 GB DDR3 Memory.

[Capt Speirs 52]

This is the wrong forum for that, you should post this in the PMDG 747 forum

[Jim Young 2,356]

PMDG has their forums and AVSIM has their forums.  Either forum is okay.  AVSIM hosts PMDG forums and cannot move topics to/from a separate corporation (or that's my policy anyway).

 

Best regards,